drm/nvf0/gr: enable support, if external cs ucode is available

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

drivers/gpu/drm/nouveau/core/engine/graph/nvc0.c

@@ -1132,7 +1132,8 @@ nvc0_graph_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
 	struct nvc0_graph_priv *priv;
 	int ret, i;
 
-	ret = nouveau_graph_create(parent, engine, bclass, true, &priv);
+	ret = nouveau_graph_create(parent, engine, bclass,
+				   (oclass->fecs.ucode != NULL), &priv);
 	*pobject = nv_object(priv);
 	if (ret)
 		return ret;

drivers/gpu/drm/nouveau/core/engine/graph/nvf0.c

@@ -30,6 +30,10 @@
 
 static struct nouveau_oclass
 nvf0_graph_sclass[] = {
+	{ 0x902d, &nouveau_object_ofuncs },
+	{ 0xa140, &nouveau_object_ofuncs },
+	{ 0xa197, &nouveau_object_ofuncs },
+	{ 0xa1c0, &nouveau_object_ofuncs },
 	{}
 };